基于内置力执行器的砂轮不平衡振动主动控制

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (24) : 125-130.

论文

基于内置力执行器的砂轮不平衡振动主动控制

乔晓利1,2, 祝长生1

作者信息 +

A built-in force actuator for active unbalanced vibration control of grinding wheel

Qiao Xiaoli1, 2, Zhu Changsheng1, Zhong Zhixian1

Author information +

文章历史 +

摘要

为了有效的控制由砂轮质量不平衡引起的不平衡振动，本文提出了一种新的控制砂轮不平衡振动的主动控制方案，该控制方案中用来抑制振动的电磁力源于无轴承电机径向磁悬浮力产生的原理。本文首先研究了双绕组感应型电主轴的结构及工作原理，径向控制力的模型及砂轮的受力模型，用有限元法建立了感应型柔性电主轴-砂轮的动力学模型，设计了感应型柔性电主轴-砂轮不平衡振动的主动控制系统，用有限元法分析了当电机转子偏心和不偏心时，控制绕组电流加入对电机内部性能的影响，结果表明该控制方案完全可行并且对抑制砂轮端不平衡振动具有显著作用。

Abstract

To control unbalanced vibration caused by grinding wheel mass unbalance, the paper proposes a new active
control strategy for suppressing grinding wheel unbalance vibration，Suppressing vibration damping in control scheme originates from the principle of a bearing less motor having a radial magnetic force generation. First, the winding arrangement and principle of the induction-type two windings electric spindle are investigated. Induction electric spindle radial control force model and the force model which is exerted on grinding wheel are analyzed. The paper establishes the induction-type flexural electric spindle-grinding wheel dynamic model by finite element. An active unbalanced vibration control system for electric spindle-grinding wheel is designed and simulated. The results show that the control scheme plays a significant role in suppressing the unbalanced vibration of grinding wheel.

导出引用

乔晓利; 祝长生. 基于内置力执行器的砂轮不平衡振动主动控制[J]. 振动与冲击, 2012, 31(24): 125-130

Qiao Xiaoli;;Zhu Changsheng;Zhong Zhixian. A built-in force actuator for active unbalanced vibration control of grinding wheel [J]. Journal of Vibration and Shock, 2012, 31(24): 125-130